公开(公告)号：US20180255119A1

公开(公告)日：2018-09-06

申请号：US15908332

申请日：2018-02-28

Applicant: Sennheiser Communications A/S

Inventor： Torben CHRISTIANSEN ,  Svend FELDT ,  Bjarne KLEMMENSEN

IPC: H04L29/06 ,  H04N21/439

CPC classification number: H04L65/608 ,  H04L12/66 ,  H04L47/2416 ,  H04L63/0428 ,  H04L63/0442 ,  H04L63/064 ,  H04L65/403 ,  H04N21/439 ,  H04W12/003 ,  H04W84/20 ,  H04W88/16

Abstract: The disclosure presents a method and a communication system comprising; an audio gateway including; a first wireless interface configured to transmit and receive an audio signal via a first communication link, a processing unit configured to transfer the audio signal into an audio streaming signal, a second wireless interface configured to transmit the audio streaming signal via a second communication link, a plurality of communication units comprising a master communication unit and at least a first slave communication unit, wherein each of the communication unit comprises: a first wireless interface configured to receive the audio streaming signal via the second communication link and to communicate with a communication unit, a speaker configured to sound the audio streaming signal received from the audio gateway, a memory unit, and wherein the master communication unit is configured to transmit a pairing request via the second communication link to the audio gateway, and the audio gateway transmits then an encryption key to the master communication unit, and the first slave communication unit is configured to request the encryption key by transmitting an encryption request including an identification of the first slave communication unit to the master communication unit via a first internal communication link, and the master communication unit transmits then the encryption key relating to the second communication link to the first slave communication unit based on an access criteria, and the first slave communication unit is then configured to eavesdrop the audio streaming signal being communicated via the second communication link between the audio gateway and the master communication unit.